
import re


from .models import User



def jwt_response_payload_handler(token, user=None, request=None):

    #自定义jwt认证成功返回数据
    return {
        'token':token,
        'user_id':user.id,
        'username':user.username
    }


def get_user_by_account(account):
    """
    根据账号获取user对象
    :param account: 账号，可以是用户名也可以是手机号
    :return: User对象 或者None
    """
    try:
        if re.match('^1[3-9]\d{9}$', account):
            # 账号为手机号
            user = User.objects.get(mobile = account)
        else:
            # 账号为用户名
            user = User.objects.get(username = account)
    except User.DoesNotExist:
        return None
    else:
        return user

# class UsernameMobileAuthBackend(ModelBackend):
#         # 自定义用户名或者手机号认证
#
#     def authenticate(self, request, username=None, password=None, **kwargs):
#
#         user = get_user_by_account(username)
#
#         if user is not None and user.check_password(password):
#
#             return user